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From 100 tickets numbered 1, 2,3.. ........

From 100 tickets numbered 1, 2,3.. ..... 100.four are drawn at random. What is the probability that 2 of them will bear numbers from1 to 40 and the other 2 will- bear any number from 41 to 100?

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UNITED BOOK HOUSE-MCQ-EXERCISE
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  2. For any two events A and B prove that P(A cup B) le P{A) + P (B).

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  3. From 100 tickets numbered 1, 2,3.. ..... 100.four are drawn at random....

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  4. Two balls are drawn at random from a bag containing 6 white and 4 blac...

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  9. In any triangle ABC If sinA : sinB: sinC=4:5:6,then prove that cos A ...

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  10. Find the domain of definition of the function defined by f(x)=1/loge(2...

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  11. Solve :barz=iz^2(z being a complex number)

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  12. if x be real, show that the value of (2x^2-2x+4)/(x^2-4x+3)cannot lie ...

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  13. If alpha be a root of the quadratic equaiton 4x^2+2x-1=0 .Prove that 4...

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  16. If the coefficient of-four successive termsin the expansion of (1+x)^n...

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  17. If s1,s2,s3are thesums of n natural numbers, theirsquares, their cubes...

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  18. Find the sum upto n terms : 12+14+24+58+164+….

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  19. Find the equation of the parabola whose co-ordinate of vertex is (-2, ...

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  20. If (alpha+beta)and (alpha-beta)are the eccentric angles of the points ...

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